What challenges did American cities face in the late 1950s and early 1960s unravel?

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The 1950s in America are often described as a time of complacency. By contrast, the 1960s and 1970s were a time of significant change. New nations emerged around the world, and insurgent movements sought to overthrow existing governments. Established countries grew to become economic powerhouses that rivaled the United States, and economic relationships came to predominate in a world that increasingly recognized that the military may not be the only means of growth and expansion.

they had many gains 1 one freedom for slaves the major cause of the civil war is that the   north wanted freedom for slaves but the south didn; t creaitng the civil war

another gain they have is poltiical influence

poltiical influence is a big thing everywhere even now peoplle are always trying to get the head up in poltics thats what they did by giving the republicians a good name for freeing slaves